Results 41 to 50 of about 6,253,245 (414)
Synthetic stellar populations: single stellar populations, stellar interior models and primordial protogalaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 We present a new set of stellar interior and synthesis models for predicting the integrated emission from stellar populations in star clusters and galaxies of arbitrary age and metallicity. This work differs from existing spectral synthesis codes in a number of important ways, namely (1) the incorporation of new stellar evolutionary tracks, with ...
Raul Jimenez +4 more
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Nebular Continuum and Line Emission in Stellar Population Synthesis Models [PDF]
, 2016 Accounting for nebular emission when modeling galaxy spectral energy distributions (SEDs) is important, as both line and continuum emissions can contribute significantly to the total observed flux.
N. Byler +3 more
semanticscholar +1 more source
Multiple Populations in Star Clusters
Universe, 2022 We review the multiple population (MP) phenomenon of globular clusters (GCs): i.e., the evidence that GCs typically host groups of stars with different elemental abundances and/or distinct sequences in photometric diagrams.
Antonino P. Milone, Anna F. Marino
doaj +1 more source
Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
The Astrophysical Journal, 2023 We present the first detailed comparison of populations of dwarf galaxy stellar streams in cosmological simulations and the Milky Way. In particular, we compare streams identified around 13 Milky Way analogs in the FIRE-2 simulations to streams observed ...
Nora Shipp +21 more
doaj +1 more source
Stellar Population Models [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractModelling stellar populations in galaxies is a key approach to gain knowledge on the still elusive process of galaxy formation as a function of cosmic time. In this review, after a summary of the state-of-art, I discuss three aspects of the modelling, that are particularly relevant to massive galaxies, the focus of this symposium, at low and ...
openaire +6 more sources
Stellar populations in HII galaxies [PDF]
Proceedings of the International Astronomical Union, 2004 We analyse the stellar content of a large number of HII galaxies from the continua and absorption features of their spectra using population synthesis methods, in order to gain information about the star formation histories of these objects. We find that all galaxies of our sample contain an old stellar population (>= 1 Gyr) that dominates the ...
Eduardo Telles +3 more
openaire +6 more sources
UV-extended E-MILES stellar population models: young components in massive early-type galaxies [PDF]
, 2016 We present UV-extended E-MILES stellar population synthesis models covering the spectral range.. 1680-50 000 angstrom at moderately high resolution.
A. Vazdekis +4 more
semanticscholar +1 more source
About time of hydrogen burning in stellar entrails. New formulas for approximation
Вісник Астрономічної школи, 2017 The relationship between the duration of nuclear reactions and initial mass of the star is an important component a wide variety of astrophysical problems.
V. A. Zakhozhay, S. I. Zabuga
doaj +1 more source
Inflow, Outflow, Yields, and Stellar Population Mixing in Chemical Evolution Models [PDF]
, 2016 Chemical evolution models are powerful tools for interpreting stellar abundance surveys and understanding galaxy evolution. However, their predictions depend heavily on the treatment of inflow, outflow, star formation efficiency (SFE), the stellar ...
B. Andrews +3 more
semanticscholar +1 more source
Star Formation History at the Centers of Lenticular Galaxies with Bars and Purely Exponential Outer Disks from SAURON Data [PDF]
, 2010 We have investigated the stellar population properties in the central regions of a sample of lenticular galaxies with bars and single-exponential outer stellar disks using the data from the SAURON integral-field spectrograph retrieved from the open Isaac
A. D. Slyz +48 more
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